A normal weight is a BMI of 18.5 to 24.9. People with a BMI of 25 to 29.9 are considered to be overweight. A BMI of 30 to 30.9 is classified as obesity and 40 and above as extreme obesity. Rates of ...

When you undergo gastric bypass, a common weight-loss surgery, your stomach loses about 80% of its size, and there are changes in your small intestine. Now, you have to be more strategic about what -- ...

Weight loss surgery involves reducing the capacity of the stomach to hold food, and therefore the amount of calories and nutrients that can be absorbed in the intestines. A patient’s diet needs to be ...

Fill in the blank: “I would be thin if only I didn’t (blank).” Just like everyone else, obese people overeat, eat when they are stressed or skip meals. Obesity is generally having 50 to 100 pounds or ...

Gastric bypass surgery improves type 2 diabetes by other mechanisms in addition to weight loss and does so better than a low-calorie diet despite achieving equal weight loss, a new study finds.